Automated storage and retrieval systems for managing storage of inventory at a retail facility include a storage structure with storage locations configured to store containers that contain retail products, and a conveying system that conveys the containers between the storage locations and a product picking station. A processor-based control circuit analyzes one or more business rules governing product merging between the containers being conveyed toward the picking station by the conveying system to identify two containers that are eligible for the product merging therebetween. When the control circuit detects that the two containers identified as product merging eligible arrived at the picking station, these two containers are kept by the conveying system at the picking station until all of the products are removed from a first one of these two containers and merged together with the products stored in a second one of these two containers.